Oshima and Mihara-yama

In 1986 there was a major eruption at Oshima, first from the main crater and
then from a line of fissures inside the caldera and on the flanks. The
island had to be evacuated. This photo shows the Mihara-yama cone. All
photographs courtesy of and copyrighted by Mike Lyvers.

The caldera wall and 1986 lava flows.

The active crater of Mihara-yama.

A panorama of the active crater.

The crater wall.

The somma of Oshima with active fumaroles

Some of the eruptive fissures from the 1986 eruption, and the distance, the
caldera wall. View is from the central cone.

The 1986 lava flows from the edge of one of a line of craters formed in 1986.

Mike Lyvers near the edge of the active crater, which is extremely deep.

The crater wall with a massive fissure (note the red color inside the bottom
part: incandescence?).

Mike Lyvers standing amid trees burned in the 1986 flank eruption (outside
the caldera, where there is another line of craters).